Macromolecules such as lipids and carbohydrates are produced from monomers through condensation reactions.
Answer the following statement true (T) or false (F)
True
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A microbiologist is working with two genera of bacteria, A and B, to determine if cells are competent. Strains are grown under optimal conditions, and DNA fragments that carry the gene for green fluorescent protein is added to each culture at 20-minute intervals. Samples from each treatment are plated to nutrient agar and incubated, after which the plates are examined under an ultraviolet lamp. The microbiologist observes that all plates of bacteria B contain colonies that are fluorescent, while for bacteria A only the plates from stationary phase demonstrate fluorescent colonies. What can be concluded from these results?
A. Competence in bacteria A is constitutively expressed. B. Competence in bacteria B is dependent on the phase of growth. C. Both bacteria A and bacteria B cells are competent. D. Neither bacteria A nor bacteria B cells are competent.
In the male, an enlarged ________ gland may squeeze the urethra, causing urinary retention
Fill in the blank(s) with correct word
One function of the type of tissue represented in the accompanying figure is:
a. insulation. b. flexible support. c. calcium reservoir. d. oxygen transport. e. secretion and absorption.
Bones are connected to other bones by ________
Fill in the blank(s) with correct word